Description
7S 24V 20A BMS
This bms is for a Lithium-ion battery. Not suitable for a LiFePO4 battery
Specifications
- Brand Name: ANN
- Size: L70*W51.5*T11mm
- Nominal Capacity: 5-30Ah
- Model Number: 7M20A01
- Voltage: 24V
- Weight: 0.08KG
- Type: Li-ion battery BMS
- Application: 7S 24V 5-30Ah battery
- Product name: 7S 24V 20A li-ion BMS
- Rated Voltage: 24V/25.9V
- Charging voltage: 29.4V
- Continuous working current: 20A
- Over-Current Discharging Protection: 60A
- Maximum charging current: 8A
- Balanced Current: 50mA
- Charge and discharge: Different charge and discharge port
- Dimensions: L70*W51.5*T11mm
Features
1. It is suitable for 7S 24V lithium ion battery pack.
2. With functions of protection from voltage, current detection, including over-current, overvoltage, under-voltage and short circuit protection, voltage balance function.
3. This BMS was build with high end electronic components (High End Integrated IC chip and MOSFET ) ,It has highly precision on detection on voltage and current .stable working performance in extremely condition.
Wiring instructions:
power wiring harness
B-:Connect to battery negative (3135 Black 14AWG L=150±5mm)
P-:Connect to negative of discharge port (3135 Blue 14AWG L=150±5mm)
C-:Connect to negative of charge port (3135 yellow 18AWG L=150±5mm)
Voltage monitoring wiring harness
Line type:UL1007 22AWG L=300±5mm
B-(Black),B7+(Red)
B-(GND)/B1/B2/B3/B4/B5/B6/B7(B+)
Remarks:
Please connect B- line firstly, and then connect voltage monitoring wiring harness. The last step is to connect charge and discharge lines. If you want to remove them, the order should be reversed. Please pay attention to the connection order, or it will damage the component.
Electrical Characteristic (Ta=25 ºC)
|
No. |
Test Item |
Min. |
Typ. |
Max |
Unit |
|
1 |
Input Charging Voltage |
|
29.4V |
|
V |
|
2 |
Input Charging Current |
|
8 |
|
A |
|
3 |
Output Discharging Current |
|
20 |
22 |
A |
|
4 |
Over-Current Discharging Protection |
50 |
60 |
70 |
A |
|
5 |
Current Consumption |
|
25 |
32 |
uA |
|
6 |
Balance Current |
45 |
50 |
55 |
mA |
|
7 |
Balance Voltage |
4.16 |
4.18 |
4.20 |
V |
|
8 |
Over-Charge Protection Voltage |
4.17 |
4.2 |
4.25 |
V |
|
9 |
Over-Charge Protection Voltage Delay Time |
1.0 |
1.5 |
2.0 |
S |
|
10 |
Over-Discharge Protection Voltage |
2.67 |
2.75 |
2.83 |
V |
|
11 |
Over-Discharge Protection Voltage Delay Time |
1.0 |
1.5 |
2.0 |
mS |
|
12 |
Short Circuit Protection Release |
Remove the load |
|||
|
13 |
Impedance |
|
7 |
12 |
mΩ |
|
14 |
Operating Temperature |
-20 |
+25 |
+50 |
ºC |
|
15 |
Storage Temperature |
-20 |
+25 |
+45 |
ºC |
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